Whether there are seven Orders?

❌ Objection 1 : It would seem that there are not seven Orders. For the Orders of the Church are directed to the hierarchical acts. But there are only three hierarchical acts, namely "to cleanse, to enlighten, and to perfect," for which reason Dionysius distinguishes three Orders (Eccl. Hier. v). Therefore there are not seven.

❌ Objection 2 : Further, all the sacraments derive their efficacy and authenticity from their institution by Christ, or at least by His apostles. But no mention except of priests and deacons is made in the teaching of Christ and His apostles. Therefore seemingly there are no other Orders.

❌ Objection 3 : Further, by the sacrament of Order a man is appointed to dispense the other sacraments. But there are only six other sacraments. Therefore there should be only six Orders.

❌ Objection 4 : On the other hand, It would seem that there ought to be more. For the higher a power is, the less is it subject to multiplication. Now the hierarchical power is in the angels in a higher way than in us, as Dionysius says (Eccl. Hier. i). Since then there are nine Orders in the angelic hierarchy, there should be as many, or more, in the Church.

❌ Objection 5 : Further, the prophecy of the Psalms is the most noble of all the prophecies. Now there is one Order, namely of readers, for reading the other prophecies in the Church. Therefore there ought to be another Order for reading the Psalms, especially since (Decretals, Dist. xxi, cap. Cleros) the "psalmist" is reckoned as the second Order after the doorkeeper.